{"product_id":"qpking-m4-motorcycle-scan-tool-for-harley-davidson-4p-6p-connector-handheld-2-8-color-display","title":"QPKING M4 Motorcycle Scan Tool for Harley-Davidson - 4P\/6P Connector, Handheld 2.8\" Colour Display","description":"\u003cp\u003e\u003cstrong\u003eThe QPKING M4 is a handheld diagnostic device built to read, clear and test full-system faults on compatible Harley-Davidson motorcycles using their 4‑pin or 6‑pin round diagnostic port.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact scanner provides mechanics and riders a focused Harley diagnostic workflow: retrieve trouble codes, observe live sensor data, run active tests and perform supported service resets. The M4 is tailored for Harley models with the round 4P\/6P connector and includes a secondary OBD2 cable for basic car engine checks—coverage varies by model year and ECU. Its 2.8‑inch color display operates in 17 languages and the unit runs from the bike's 12 V supply (no internal battery).\u003c\/p\u003e\n\n\u003ch3\u003eHow does the M4 identify and clear faults on my Harley-Davidson?\u003c\/h3\u003e\n\u003cp\u003eThe M4 connects with the motorcycle’s round 4‑pin or 6‑pin diagnostic port to access supported ECUs. It reads stored and pending fault codes, displays ECU info and can clear codes when the underlying issue is resolved.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReads and clears supported diagnostic trouble codes (DTCs)\u003c\/li\u003e\n  \u003cli\u003eShows ECU identification and firmware details\u003c\/li\u003e\n  \u003cli\u003eDisplays live data streams for sensors and modules\u003c\/li\u003e\n  \u003cli\u003eCoverage depends on motorcycle year, model and ECU type\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat service functions and active tests can I perform with the M4?\u003c\/h3\u003e\n\u003cp\u003eThe tool supports a range of service procedures and module-level active tests where the motorcycle’s ECU allows them. Some reset and adjustment routines are available directly from the device; ABS bleeding is supported on eligible models through 2023.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003ePerforms supported service resets (where available)\u003c\/li\u003e\n  \u003cli\u003eRuns active tests and output actuations to diagnose components\u003c\/li\u003e\n  \u003cli\u003eABS bleed function available on compatible models (up to 2023)\u003c\/li\u003e\n  \u003cli\u003eNot all models or functions are guaranteed—check compatibility first\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich cables are included and what do they do?\u003c\/h3\u003e\n\u003cp\u003eThe M4 ships with two separate cables to broaden its utility. Use the Harley 4P\/6P cable for full motorcycle diagnostics; the OBD2 16‑pin cable provides basic engine code reading for many cars but lacks advanced motorcycle functions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHarley 4P\/6P cable: full diagnostics, resets, active tests, ABS bleed (when supported)\u003c\/li\u003e\n  \u003cli\u003eOBD2 16P cable: read\/clear basic engine codes and view live engine data for cars\u003c\/li\u003e\n  \u003cli\u003eSwitch cables depending on vehicle and intended function\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe unit operates as a standalone tool and lacks an internal battery, so it must be powered by the motorcycle’s 12 V system. Updates are installed via the official update package and a FAT32 SD card while the tool remains powered—no internal power removal required.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWho should choose the QPKING M4?\u003c\/strong\u003e The M4 is designed for Harley-Davidson owners, independent motorcycle technicians and small shops that need a compact, Harley-focused diagnostic device without subscription fees. It’s best for users who have models with the round 4‑pin or 6‑pin diagnostic connector and want on-bike fault reading, live data observation and supported service routines. If you require broad multi-brand motorcycle coverage beyond the round Harley connector, or advanced 2024+ ABS procedures, evaluate compatibility prior to purchase.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Which Harley models work with the M4?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The M4 supports Harley motorcycles that use the round 4‑pin or 6‑pin diagnostic port; functions vary by model year and ECU—verify connector and model compatibility before buying.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can the M4 perform ABS bleeding on all Harleys?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: ABS bleeding is available only on certain compatible Harley models through 2023; 2024 and newer models are not supported for ABS bleeding.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"QPKING","offers":[{"title":"Default Title","offer_id":55170433614167,"sku":"B0FJ7YKLC6","price":172.08,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/qpking-m4-front-display.jpg?v=1790429255","url":"https:\/\/britishgarage.co.uk\/products\/qpking-m4-motorcycle-scan-tool-for-harley-davidson-4p-6p-connector-handheld-2-8-color-display","provider":"British Garage","version":"1.0","type":"link"}